Sectional air bag



I smc'rxomL AIR BAG Film Fab. 1926 INVENTOR. Wm M EEAW,

A TTORNEY.

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forming the body of the bag becomes soft under heat and often sticks to the interior in of the casing. Heretofore, in the construc: tion of thesebagsa hook or plate has been attached to the end of the bag at the point where the valve stem is located, and when pull is exerted upon the soft, hotbag at this it point, the end of the bag is apt to and often does pull out, destroying the bag. I

The object of the present invention is to improve upon the construction and design of these sectional air bags so as to secure a firm,

2c anchoringmeans for a tool or cord by which the bag can be pulled out of the tire casing, in which there is no possibility of the bag being ruptured or destroyed by the pull-exerted to remove it from the casing.

In the drawings is illustratedone embodiment of the invention, it being understood that, having explained and described theinvention, those skilled in the art may modify and change the specific construction without departing from the essential features thereof as set forth in the claims.

In the drawings:

Figure l is a side view of a sectional air bag of the usual type, except as modified by bodying the pulling device being shown in section; a

Figure 2 is a view of the end of the bag looking at the under side thereof, the outer rubber, covering being removed'to show the internal construction; and I Figure 3 is a detail showing the method of making the bag. I

The bag is composed of the usual rubber casing which maybe provided with layers of reinforcing fabric-ll. Olne end of the bag carries the valve stem 12 by which the bag is inflated. 4 At one end the bag is formed with the device of the. present invention which. afiords an easy means of withdrawing thebag from the tire casing. A strip of fa ric l5, preferthe bag at every other point.

In the operation of the bag a cord, illustrated at 18, a hook or other implement is the present invention, the end of the bag ems.

ably gum-coated cord fabric, is wound sev-.-

eral-times about the end of the ba and over .the carcass of reinforcing fabrlc .11.

'These strips of fabric are bunched together into a cable. 16 at the inner circumference of the bag, and at this point are unattached to the bag to form a loop or. eye 17. The fabric or cords are vulcanized within and around inserted through the eye by which the bag can be removed. It will be observed that a very firm anchorage is afiorded for the device by which the bag may be removed. The fabric embedded within the rubber wall and about the circumference of the bag cannot be pulled out by any force which is required to remove thebag from the-tire.

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An easy method of forming the cable. and v eyeis by the embedding of a small metal filler piece or blank 20 within the wall of the bag during the process of building and before curing, the face of the blank being formed with a groove. 21- to seat the cable. The blank is removed from the bag afterit is cured. v

What is claimed is:

1. In a sectional air, bag construction, an expansible bag having a recess formed upon its inner face, and a band of cord fabric wrapped about the bag a plurality of times, 1

the cords being brought together to form a cable which passes over the recess and forms an eye.

2. A sectional air bag construction, comprising an expansible baggand a layer of fabric wrapped transversely of the bag and vulcanized therein except at one point where it is detached from the bag toform an anchorage for bag removing means.

3. A sectional air ha construction, comprising an expansible ag, and a layer of cord fabric wrapped transversely around the bag a plurality of times, the cord fabric being embedded within the bag and vulcanized thereto except at a point on its inner surface where the cords .are bunched together and are separated from the body of the bag to form an "eye y moved from the tire.

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which the bag maybe re-' 

